Ellen Grills Kate Upton on Mark Sanchez Dating Rumors [VIDEO]

Kate Upton still won't be upfront about her relationship with New York Jets quarterback Mark Sanchez, but leave it to Ellen DeGeneres to grill the Sports Illustrated cover model like a matchmaking mother.

Upton, 19, appeared on the Ellen DeGeneres Show to promote the magazine's swimsuit edition, on which she graces the cover. When DeGeneres pressed her about rumors that she's dating Sanchez, 25, Upton admitted he was cute but continued to play coy about the true nature of their relationship.

Your boyfriend, New York jets quarterback Mark Sanchez. How does he feel about this [Sports Illustrated shoot]? the comedian asked on the show that aired Friday.

Upton responded with laughter, saying she did not have a Valentines' Day date. Even if I had a boyfriend, I wouldn't ask how he felt about it.

A huge Jets fan, Upton said she goes to games all the time because her sister has worked with the team for four years. She said she had met Sanchez before.

Yeah, he is cute, she said, after being egged on by DeGeneres. The hilarious comedian said she would like to see Upton date the football star.

DeGeneres also gave Upton an earful about the itty-bitty bikini Upton is wearing on the Sports Illustrated cover, which was released Monday.

When your trying things on, do you think to yourself, 'should I get a smaller bikini because this one is too big?' DeGeneres joked. I mean, the bottom--what is the bottom? Watch the video below.