Dumb Question

I went to this baseball game the other day with a group of friends. My sister sat next to me, and the whole time, she was hanging on me like an ornament on a Christmas tree. Leaning on me, grabbing my arm, holding my hand, she even put her hand on my leg. It made me really uncomfortable. But no one else seemed to think it was weird. Even my girlfriend thought it was cute. Am I the weird one for not wanting to be touchy-feely, especially with my sister?

>>4
Her 21, me 24.
>>5
We're close, we don't hate each other and beat each other up like we did shen we were little.  (Although we don't see each other as much since we've both gone off to college.)  I jsut think it's weird when she hangs on me like that, kinda like you don't hug or kiss your parents after a certain age, I guess.