we fall backward to the bed , and i 'm scooting back and welcoming his weight on me , clinging to him with arms and legs and my lips are on his neck and my teeth nip and i 'm screaming as i come , feeling and hearing his roar of release and our sweat is merged and smeared together and we 're gasping in unison , hips crushed together and moving , rolling , grinding , desperate for each fractional moment of mutual climax .