"It's much more personal," she said. "You will remember these moments in fantasies and that's what it does. It's not often just the visual, it's the whole package. It's very, very much, you know, brain-based too. Like words, like vibrations, sounds, there's a lot that goes into it."
Thousands of girls share Ahlsen's enthusiasm for all things Deen and participate in an active online community -- from trading images of him to posting fan-made pictures to writing swooning messages. It's a wide obsession for his approachable appeal that the man himself said he doesn't fully understand.
"I'm not intentionally encouraging anybody in any way," Deen said. "If it's happening, awesome. I have no issues with a 15, 16, 17-year-old girl reading my Twitter. I have no issues with anybody that is old enough to understand."
Deen claims he first became interested in becoming a porn star when he was in kindergarten and found an old porn magazine.
"I picked it up and I'm like, 'oh my God, this is the cool, this is awesome,'" he said. "It was this weird moment that I will always remember where I was like, this is what I want to be when I grow up. I want to do this."
Deen said he was even suspended once for telling a teacher he dreamed of becoming a porn star. He has now starred in 4,000 movies and is the youngest person ever to win porn's "Male Performer of the Year." At this year's porn convention in Las Vegas, he was treated like a rock star, with fans fawning over him.
After he turned 18, his career took off when he began sharing stories about his life online.
"Basically, until I started my blog, I really thought that I-- no one really knew who I was," Deen said. "Because the way I always say it is, 'I'm only useful from my belly button to my knees,' and I think everything else is pretty much just there."
What fans see on Deen's blog and Twitter feed range from graphic scenes from his movies and photos of his well-endowed co-stars to comments about the toast he ate for breakfast or the burrito he wants for lunch. However, Deen said he has no control whether an underage visitor wants to read his blog or watch his films.
"I understand that they're minors, and like I said, I'm not saying that they should be viewing porn, I'm not saying that and I'm not encouraging underage kids to go to my blog. In fact, I don't think they should," Deen said. "I don't think porn should be used as an actual learning guide. I think of younger girls being fans and watching my scenes would be that they might get this unrealistic depiction of what sex should be."