Here's a idea
Molly's Friend - Molly has a friend who is a cougar and mother. The cougar tries to get the mc attention whenever he goes to her house to hang with her daughter. The cougar will bend over in front of the mc, wear skimpy clothes and say vulgar things. If the mc goes along and play along with the cougar, then there will be times where he will fool around with the cougar when the daughter is busy in another room or not home. The daughter has a crush on the mc.