I am VERY close to my dad. Always was a daddy's girl, and I'm still extremely close. I will say, around 11-12, I was certainly past being carried to bed and snuggling in bed. When I was in the beginning stages of puberty (I didn't get my period until 15!!) I really didn't enjoy it. I felt awkward, and really past it. I never did tell him, but my sister kind of made a comment once and I think he felt strange after...so he stopped. Have you asked HER?
Her is the thing I've learned about dads. They see their little girls. It can be REALLY difficult for them to go through the puberty stages with a daughter. They don't like to accept that their daughter is not "little" anymore. They also sometimes don't even think of needing new boundaries. Perhaps, this discussion really needs to take place. Find out what she is comfortable with. I do honestly...and this is just my opinion...think it's a little bit strange for teenagers (and this might seem hypocritical, but I don't care) of the opposite sex to be all cuddly with parents on a bed. These aren't children anymore, in one sense. They are beginning to learn about their sexuality, and I think new boundaries need to be established. Their relationship shouldn't have to change, mine didn't necessarily. What did change, is how our relationship manifested physically. What I do think should change, is how we act physically. My dad didn't feel comfortable wresting and stuff when we were past puberty. Neither did we. I never had the inclination to sit on his lap after puberty, that kind of stuff. I would have felt strange about him doing that. Again, just my personal opinion.