yes, i have heard that they are only limited by your imagination, but where does that imagination end?

i have 2 main questions about LD possibility.

Can you feel sexual sensations of the opposite gender?
yes, i know it sounds weird, but i am wondering, is it possible to feel a NEW sensation, considering you have never felt it? and would it be the RIGHT sensation

Can you practice skills in your dreams?
such as fluently speaking a language (faster)and it carry over. i know you would not be able to learn new words.