You love Imogen's arse, don't you? It's so round and juicy. You just want to bury your face in it! It gets your cock so hard, doesn't it? You want to slide your cock right up it. She knows that's what you want to do. Why don't you get it out for her? It'd be a shame to waste it. That's it. Pull it out and start wanking it. Imagine your tight grip on it is Imogen's arsehole wrapped tightly around your dick, sliding in deep. That's it... fuck her until you cum inside her!