True, eroticism and nudity aren't the same. But when you do get both, then there's magic. The eroticism I found in the shower scene (that did win
truerty - Ellie is top of the podium), is Ellie slowly building up the courage to ask Sophia for the kiss. They could have been completely clothed, and it would have been just as erotic. But I'm not going to turn down seeing two hot women naked either.
And concerning the Yoga scene, I believe the actual eroticism is going to be in partner positions. I'm fairly sure at some stage Patricia is going to ask what the groups favourite positions are, how they make them feel etc etc
The nudity is probably just going to be in the showers afterwards