Your step-mother comes into your room, and tells you she has something she wants to talk about. Turns out, she knows you've been sneaking your girlfriend into your room before school, and having lots of loud, dirty sex. Surprisingly, she's not pissed about it. She actually seems totally ok with it! Not exactly the reaction you expected, but you're happy about it, obviously. What you really don't expect, though, is her asking for your help.  "You see, it just seems like...well, it seems like she enjoys herself quite a bit, and well..." she trails off, clearly embarrassed. You finally coax it out of her: she's never had an orgasm. You can't really believe she's coming to you for help, but you're not an idiot. You're going to take advantage of this situation any way you can. If that means helping your step-mother use a dildo two times bigger than her husband, and watching her cum her brains out on your bed...well then, so be it.