alice has a plan

We all were in the pool swiming when i looked at alice and she gave me a sexy little wink then she swam under water over to my sister maria. as alice came up out of the water i could see her hand rub my sister's pussy through her panties. then alice looked at me and smiled and began to kiss my sister, i thought no wonder i never got eny where with alice. then my sister broke the kiss and looked at me watching and said not with donny here alice. alice said why not he does not mind right donny. i thought for a moment and said not at all please continue.