Do I really have to plan on dating a girl I am going to share a bed with and get to second base with?
Of course. Don't you think that she might have feelings for you?
I've learnt that girls like gentlemen.
While it's okay if you want to be sexual with someone, it isn't okay to get physical without first letting the other person know that you aren't interested in pursuing a relationship. The other person will feel led on and badly used if they were expecting a relationship. Rather than risk emotionally hurting someone like that, you should talk with them first to ensure that they know it's only a one time thing and get their consent before proceeding.
It will be okay. Girls love sex.
It might not be okay with her. You really should talk to her so there are no misunderstanding. It would be mean to lead her on.