Jennifer Flavin and her 20-year-old daughter, Sistine, are a lethal combination ... especially in bikinis.
Sly Stallone's wife and his middle daughter slipped into bikinis aboard a fancy yacht sailing off the South of France. This family affair wasn't just about soaking up the sun and enjoying the views. There was also important business, like ... selfies!
It would be pretty easy to mistake Mom for one of Sistine's 2 sisters ... who are also on the trip, btw.
Enjoy the gallery, but before ya fantasize too much, remember ... 72-year-old Sly can still kick your ass.