Drew Barrymore and Milo Ventimiglia are both currently featured in glossy fashion spreads (for Vogue and GQ, respectively), but style is mixed with substance as they grin and share it when discussing their love lives.

"Can you feel my smiling?" bubbles Drew about boyfriend Justin Long, whom she began a PDA-packed romance with late last summer. "My cheeks hurt, I'm so happy."

The actor-cum-Mac-spokesman concurs, cutely telling the mag, "She makes my cheeks hurt, too."

And despite looking waxier than a candle display at Pottery Barn on the cover of the fashion bible, the sunny star is characteristically genuine when discussing her journey from child star to repeatedly rehabbed teen to Hollywood success story.

"I think I had some mechanism in my head that said, 'If you don't pull it together for yourself, no one else will,'" posits Drew, who was hitting nightclubs with her mom when she was barely out of elementary school. "That's coming from a person who had to try it all, burn my hand on the stove and party it up ... and who still loves to have a good time."

Says the actress, "I do believe in 'Work hard, play hard,' but 'Work hard' always comes first, and it did even when I was wild and young."

Meanwhile, Milo smolders in a variety of khaki suits in his GQ shoot, but the magazine is more interested in his cringe-y relationship with his "Heroes" co-star (and on-screen niece), Hayden Panettiere.

When asked if he's bothered that they've been nicknamed Halo, the usually serious-faced actor fesses up, "You know what, man -- it makes me smile."

Still, Ventimiglia, 30, is careful to avoid confirming the coupling, despite nudging from the interviewer over rumors he purchased the 18-year-old starlet a ring.

Halo arrive at a private party in Los Angeles on Feb. 16

"When you're in the public eye, you try to keep whatever you can private," explains Milo, who appeared less than thrilled to be faced with flashbulbs when he accompanied Panettiere to a formal soiree last weekend. "People can speculate and talk. But what can you do -- stop living your life?"

Alas, he's caught between a rock and a squicky place when the topic turns to whether he enjoyed Hayden's unsettling and frilly panty-adorned photo shoot as the magazine's Obsession of the Year.

"Yes, I did," he opines. "They were very nice."

(Go on, we'll say it with you: Ick.)

Next: Pink: No 'Cheating, Anger or Fighting' in Split