My friend brought his girlfriend over to hang out. We had a great time drinking at home and decided to stay the night. We were both sleeping on the sofa, but her boyfriend's snoring was too loud, so I lent him my bed. I tried to sleep in the corner of the bed, trying not to touch him as much as possible, but her breath and smell made me feel all flustered. I knew I shouldn't get aroused, but even though she was my friend's girlfriend... I couldn't help but touch her breasts!! I thought she'd get angry, but she said, "Hey, you can continue." What should I do in this situation!!