My girlfriend (24F) usually goes to bed an hour or two before me (25MtF). One of the perks of this is that when I eventually go to bed she’ll be really warm, while I am constantly freezing, and I can warm myself up by cuddling her. I did that, as usual. After a while I considered myself warm enough and moved to roll back to my side of the bed. As I did so, she grabbed my hand and placed it firmly on her crotch. I noticed right away that she was really wet. And the firmness of the move made me assume that she was awake, and had been playing with herself.
You might correctly guess where this is going. So I should clarify that my girlfriend and I are both in to BDSM, and we are both switches (we take turns being dom and sub). BDSM is kind of a broad collection of different kinks, and part of my girlfriend’s fantasies is being fucked while she is sleeping. While she is completely “without control”. So she has established repeatedly that she is okay with that. And I am okay with her doing that to me (once woke up with her pussy inches from my face as she was sucking me). So this was all consensual. Seeing as we live together we have of course discussed this afterwards too, and we are still both okay with doing things like these.