Tanya sitting on Adrienne. This was the only shot I could bring myself to take while they were in this position, after a few seconds I couldn't bear to look up anymore. Too much crotch too near my face!

(Not that there was anything wrong with the particular crotch, quite the opposite. It's just that once a Catholic schoolgirl, always a Catholic schoolgirl -- even when you're an atheist (and nominally straight).)