His eyes closed for a moment when his neck was attacked and Jack shuddered, his hips rocking forward. The hand under Greg's shirt tweaked a nipple as Jack finally found it in him to open his eyes, glance down at what was happening; which got him moaning loudly, "Damn," He murmured as his hand on Julien's crotch moved up to start doing as Greg was, undoing his lover's fly. Easier said than done when being touched, kissed and having only one hand free, really.