In the seventeenth installment of their intimate series, Mark and Kelly explore new depths of their sexual dynamic. Mark, jealous but eager, positions himself on all fours, ready to take whatever Kelly has to offer. Kelly, secure in her sexuality, attaches a substantial strapon dildo and teases Mark's hole before pushing in. She fucks him with abandon, their bodies slapping together in a symphony of lust, Mark's cries of pleasure echoing through their home.