Party bitch! Is that going too far?

I'm staying with my girlfriend for a few days! Yesterday at the party I had something with her mate, that was very horny, but that's not enough for me! Today I told her brother to wait in a certain room, he was completely clueless! Then I came to him in sexy lingerie and surprised him! What do you think of my choice of room? I thought her parents' room would be nice for fucking! Do you think it's all going too far? First her mate, then her brother?