You do the quick tuck into your waistband?
Or you can have the situation I had to face at a Wisconsin game a few years back. Two good looking young woman appeared near the end of the first quarter and it turned out they had the two seats next to me. Unfortunately, there was space for one and maybe a quarter girl butts. So one, after asking very politely, ended up sitting half in my lap and half in her friends lap. Damn, I hated those tight quarters that night!