Gregg Sulkin and Sistine Stallone Hold Hands During Lunch Date

There are 2 ways to see Gregg Sulkin's latest date -- totally awesome or risky business -- 'cause he's getting cozy with Sylvester Stallone's 19-year-old daughter.

Gregg and model Sistine Stallone had a lunch date Wednesday in Bev Hills. Gregg, of course, used to bang Bella Thorne ... before jumping to this girl and that girl. That's all fine and dandy, everyone's got a past, but dude ... this is Sly's little girl.

We know he has some experience with boxing gloves, but he ain't Rocky. We're sure it won't be an issue though.