VIDEO : Tyga & Kylie Jenner - Mission Impossible (To Believe They're Not Dating)

Tyga and Kylie Jenner had forbidden love written all over them --well, maybe a little overstated -- as they served up meals for the homeless on Thanksgiving Eve. The 25-year-old rapper insists he's not romantically involved with the 17-year-old reality star, but there's plenty of smoke ... you'll recall a week ago when he pitched a fit because the club where he was supposed to perform wouldn't let her in because of her age.??