They are both beautiful girls! I would suggest that they wrestle on mats or on a bed first. Boxing hurts more, more of a chance of bruising and a black eye, or bloody nose. Wrestling is sexier anyway! No punching or gouging, just grabbing, and rolling around. Face sits and butt sits are so hot and sexy, as are breast smothers and leg scissors. Foot smothering, and foot chokes are hot too! I say let them have a play wrestle, or tickle fight first, much more sensual, than punching and hurting each other. Their faces are too pretty to injure! Have a safe word like MUD for a girl to yell if she wants the action to stop, for whatever reason, and that is another way to ensure that there is no real harm, just good sexy body on body fun!