Jack's moans were lost to the kiss before he relaxed, slumping against JD, breaking the kiss to take a few deep breaths. "M'sorry, s'gonna leave a mark..." Jack muttered to JD's neck, before turning his head slightly to see what he'd done before very gently pressing a kiss to the mark, then moving back to having his head on JD's shoulder, face against his neck, it felt so comforting.