For me it's just sex in general.

Heres a hard truth for me. I had "forbidden" premarital sex and felt extreme guilt and shame. I justified it as a christian because I felt "in love" with the person and figured eventually we'd get married anyway so who cared? Later, I realized there was no way I wanted to marry this person and told her. She gave me a lot of shit, but when she didnt think I would change my mind she just randomly told me she was pregnant. Wow. I didnt really believe her, but I would have felt like shit if I went through with the break up. So, in talking to my extremely religious father(about wanting to break up, not the "pregnancy" )he told me if I had sex with someone, even before marriage, in Gods eyes we were already married, so I needed to make it official. Thanks dad.
Still married, soooo many regrets. But...I did get 3 amazing little humans out of the deal. And guess what? When they're older I'll be encouraging them to have ownership of their own body, and if they want to try sex, I'll tell them to do it safely and to have fun, but to know potential consequences/risks. We'll skip the shame part and the whole "save yourself for the one god is choosing for you". Christianity really screws sex up, I'm still trying to adjust my brain to have a healthy view of it.

I had a penchant to do the forbidden. There was a lot of religion around me growing up, so my curiosity to pursue the forbidden increased. I even get bored with regular sex... lol

I'm just owed a lot of sex, debt still mounting (fnerr, fnerr)