I think so.
Today my wife left home about 9:30 a.m. and was to be away until the early afternoon. I spent the better part of 2 1/2 hours giving myself 3 enemas of 3, 4, and 4 quarts. Then I started in playing with my toys in the tub. While playing, I had my laptop in the bathroom with some porn playing on the screen. I got thinking about the things that have always gotten me off, what I like to fantasize about, and the kind of porn I enjoy watching.
When my wife and I were sexually active together, I would gladly perform oral sex on her without ever penetrating her or having her give me oral sex. Now, don't misunderstand me. That was never the case. We always took good care of each other with regard to what we did in the bedroom. I'm just saying, if I had only one thing I were able to do of a sexual nature, it would be giving her oral pleasures. I cannot believe how delicious her pussy juices taste and how much of it she produced each and every time we enjoyed sex. Most often we would be in a 69 position or I'd be laying on my stomach and her on her back (both in the same direction) with my arms under her legs and my head buried in her crotch. Trust me, I don't believe we ever had sex that did not involve me kissing, licking, and sucking her vagina, labia, and clit. And we had plenty of sex. Another of my favorite sexual activities was to lie in bed on my back as she straddled my face. Again, a great way to perform oral sex on her. Also, with her on top, whether I was penetrating her or not, she would hang her 40D cup tits in my face.
Anyway, as I watching some of my favorite type of porn today, I realized the first things I watch were guys drinking women's piss straight from the source. What I wouldn't do to enjoy drinking my wife's pee. I can only imagine how wonderful that would be. After watching several of these videos, I moved to the next type of porn I enjoy. That is guys sucking TS cocks, swallowing their cum, and getting fucked by them. Again, I can only imagine how great that would be.
So, after realizing being subservient to a woman by gladly performing oral sex for hours on end (if asked to) without any reciprocity, wanting to drink their pee, and wanting to serve a TS in all ways possible, I figured that must fit the definition of a sub. While I would enjoy mutual pee games, if that wasn't their interest I'd still be happy to drink their golden nectar. I expect a TS could suck me; but, I won't get hard and I won't cum; so, it wouldn't make a big difference. But, I think I'd really enjoy letting one have her way with me to the degree I'd get to suck her off and swallow her load after which she could then fuck my ass to her heart's content.
The only caveat I'd put on this is I would not want to be a sub in a bdsm relationship as I don't want spankings/pain/etc. I just want to provide as much pleasure as possible to the lady I'm servicing.