Only seen me in a speedo

[California Dolphin]

If you think there's a mutually satisfactory relationship brewing, then go for it!!!

Nice to know your speedo may have been a catalyst for it to start happening. If so, maybe you should also look for a source men's short shorts to wear to casual get-to-gethers out of the pool.

"Chubbies" Shorts is the first place to start looking.

[PSDave]

I don't think it was what you were wearing as much as what you were doing. You were at the Y swim lessons with your son. Nothing impresses a women with children than seeing a father spending time with they kid. I assume you are in good shape, which would also appeal to a woman going through a divorce - especially if her ex is a beer swilling, football watching, big bellied couch potato. She probably appreciated you had the body for a speedo, but the fact you were spending time with your son was the real appeal. Be yourself and offer "play dates" with your kids. Great way to know her and figure if she wants more than a casual friendship

[Torchwatch]

Decide what you want, then make your personal rules.
If you just want someone pleasant to chat to while the children play then make it clear to her that this is the limit of your friendship.
You've probably gone past the point of a one night stand, it would make things too complicated especially with children involved, so if this slips into a relationship expect it to be medium or long term and with emotions involved.

Dog owners often go through this situation as walking a dog tends to attract other dog owners.

Whatever happens try to ensure that all four of you enjoy the situation.