I'm comfortably open about my gunge tank slime jerk off sessions with my wife if and when the conversation comes up. Having had the experience a few times now since I initially posted about it. If she notices things in the garage are moved around or the gunge tank looks cleaned up, she'll ask if I had some messy fun while she was out of town or work.
Typically she'll bring it up in a playful teasing manner while in some state of undress or a hand down my pants. She thinks it's funny I like getting slimed--she's known it for years (even before we were married) but has never tried--and has a "please just clean up after you and your friend so I don't have to" mentality. And now that she knows my dick and gunge tank are connected, she thinks it's funnier. However, last evening was incredibly different and insanely horny.

She came home from a trip, we had some wine and were in a heavy petting stage enjoying each other after a week apart. She had a hand wrapped around my dong and commented that the garage looked recently cleaned. I laughed and she asked if I had some slime fun. My dick pulsed and it was her turn to laugh. Exposed by my dick--traitor-- I told her I jerked in the gunge tank 2 days prior having been deprived of her gorgeous body while she was out of town.
We were moving past the heavy petting stage now and I was putting on my moves when she apologized that she was a little too worn out from traveling for a sweaty fuck session. I understood but was disappointed and with a hand still on my raging hard cock she said something that made even more blood run to my dong: "I'm too tired, but why don't I watch you in that slime machine of yours?"

Glass cutting boner.
I could have built a house with my cock as a hammer in that moment.

A little nervous, I find out she's serious and discuss the mechanics--she's never seen slime being made or anything. So I offer her to go unpack a bit, put on comfortable clothes and I'll prep the slime. I jokingly ask if I should double it in case she wants to enjoy it too, she told me that the deal is off if she gets even a drop of slime on her!
How I didn't knock everything over in the kitchen with my 11-incher banging around while I made some quick gunge--shout out MessySupplies MS gunge--I have know idea. I shout to my wife I'm done in the kitchen and to meet me in the garage as I carry 4 buckets of glop to the gunge tank.
My wife walks out in just a thong, beautiful tits hanging out and I'm distracted. She has to bring me back to reality to finish filling the tank, and she laughs as she watches my cock get in the way of climbing the ladder to fill the tank. She asks if I like her choice of outfit and I fumble over my words as I approach her for a kiss. Breaking apart she asks me to walk her through the basics of the gunge tank and I put on my best gameshow host personal and give her the rundown.
She kindly asks me what about the whole contraption gets me excruciatingly horny and I explain there's just something about sitting under the glop; that it's completely different than when I get slimed with my platonic friend. She seemingly understood the horrible explanation and I take a seat in the tank.

My wife likes watching me jerk off so I put on a good show for her and she's giving me some great visual material! My cock is in heaven--gorgeous love of my life in front of me basically naked and tons of slime above my head. What more could a slime model ask for??
I explain to her the mechanics of the cord, not that it's difficult, and get up to hand it to her. She tugs my cock a bit, comments on how hard I am and tells me to sit back down.

I continue to jerk as I sit there and she asks when she should pull the cord. I tell her I really have found that I love to pull it right when I'm about to cum and she agrees to do just that. Like I said, I'm used to pleasuring myself in front of her, or on FaceTime, or as foreplay, so I'm putting on a good show. Flexing for her, telling her how much I want to ram my cock inside her, licking precum off my fingers while she watchesall my best moves. She then takes the cord, puts it between her tits and tells me she's excited to see me turn green. That does it for me, I let her know I'm getting close. She encourages me more; rubs the cord on a nipple, asks me if I'm excited about getting slimed. God, she's fucking getting it perfectly!
I tell her how hot she looks and how excited I am to get slimed. She tells me how hot I look, rubs her tits some more and can tell I'm almost there. We lock eyes, I feel my balls pull up and she pulls the cord.

I think the slime hit me a mere half second before I came. Face up, I get coated as I'm convulsing with the most intense release I can remember. I can't see her but I do hear her moan--she later confirmed that--and laugh as I turn into a green blob that's still jerking my cock as I finish draining it from an intense load.
The slime starts to slow to a few blobs coming out a minute, I wipe my face and I see my beautiful wife sitting there. No awkwardness, we talk as the glop still continues to randomly fall on me. I tell her at this point there's still a bit left and I like to enjoy it all as I relax in the afterglow. She tells me I look great, to enjoy it and that green is my color which is the sweetest thing she could've said in that situation. I ask her about the moan I heard and she said it was hot to see my sexual energy when the slime dropped. We talk a bit more, I try to convince her to join me in the tank and she vehemently refuses. She tells me she's worn out and going to bed and that I better make sure I clean up the garage. I tell her she's wonderful and thank her as she walks into the house.
She pauses to let me know that she loves me, that she truly thinks I look hot green, slimy and hard, then mentions that we can always do it again whenever I want.
My cock springs right back to life, and she notices and does a sexy laugh. She tells me there's no rush for me to clean up and to do what I love doing as I reach for my hard cock again and begin stroking it with slime as lube.
After she tells me to have fun, she shuts the door and I manage to hobble around to fill the tank up with another bucket of gunge. I enjoy a long, slow jerk session again before I start the tedious clean up process. Worn out and spent, I feel like I just ran a sexual marathon. Somehow I'm even sweaty under all the cool slime, I could even smell the musk from my pits and balls through all the slop.

An hour and a half later, the garage and myself are squeaky clean and I crawl into bed alongside my fantastic wife. She rolls over to give me a kiss, we affirm our love for each other and she calls me "slime boy" as she rolls over for me to spoon her. My damn cock betrays me again at the new nickname and I try to hide it. She rolls over and puts my dick at the entrance to her already wet pussy. How I was able to manage fucking again after the intense garage jerkoffs is impressive to even myself. She tells me while I'm slamming into her and bringing her to orgasm that she really did think I looked hot covered in slime and wants to watch some of my videos I've recorded. That ended up bringing me to my climax and we collapsed and went to bed.

Glad this tank is getting some action!!