Cosima, the birthday girl, watches, her jealousy morphing into arousal. She joins in, pushing Keira aside, hungry for Marco's cock. She sucks him, tasting Keira's juices, before mounting him reverse cowgirl. Her tits slap against her chest as she bounces, her pussy stretching to accommodate Marco's thickness. Keira, not one to be left out, fingers her clit, watching Cosima ride Marco, her own birthday celebration forgotten, lost in the intense, slippery nuru fuckfest.