I am thinking it was a late 80s early 90s movie , so the scene i remember involves a young woman who is training for some kind of swimming competion and kinda ignores her boyfriend , her boyfriend comes over to see her she is in the pool swimming and wont even get out to greet him so he is talking to her mother in the house , her mother asks the boyfriend if he would help hang a picture , so he climbs up the ladder to hang the pic and the mother supports him by holding the back of his legs and after a bit starts giving him some attention he climbs down the ladder and they start kissing while the daughter / girlfriend is out swimming