For lack of any other available motion, Shannon rocked with the smack and buried his head along the crook of Eli's neck and collarbone to hide his gasp. The leather glove Eli was wearing added to the sting against his unprotected skin and he took a few breaths through his nose to let it begin to fade. Once the pain was still there but dissipating, he pulled his legs up and let them encircle Eli's waist, hooking his ankles together to keep himself from slipping. There was no thought of a safeword in his mind, the slap hadn't been that bad, just the notion that Shannon couldn't conceive why he should keep fighting it when Eli was obviously very determined.