There's just something about this picture that makes it look like such a realistic situation. Couple a schoolgirls, maybe the parents are sleeping in the next room, and like a boy the futa is just learning how to have sex with a girl, but still making adorable mistakes. Hehe, I'd like to be that girl under her and pat on her on the head, "it's okay, it's okay, just don't get it on my uniform next time, 'Kay? Hehe, you're just so cute, next time lets do it without a condom!" or something like that.
...Sorry, I got it on your uniform...Ah, yeah, that's okay...