Naw...not a chance. Dasha was way more sexually active in her first apartment than she ever was after moving in with Masha. In Dasha's first RLC relationship, she had many boyfriends who visited her regularly as I have already commented on. As for Sasha, before he committed to Dasha, he let a guy rub his dick with his toes at one of their parties. I was surprised. Before that event, I never suspected that Sasha might be bisexual. So I don't think Masha had much to do with grooming either of them.