Egged on by that groan, Omi spreads him wider with his fingers to expose more of that sensitive ring of skin. He massages with his tongue: warm, wet pressure rubbing against him, occasionally tracing the rim or just inside. As he works, his teasing on the outside transitions more and more to teasing on the inside with slow probing motions in and out, in and out.

He's buried enough not to really need those fingers anymore, so he wraps them back around that hard cock in a firm grip and pumps in time with his tongue.