Fairly long

Once Lucas has bottomed out, you pull him down and make out with him, letting him back up you start bouncing him up and down your cock, feeling every part of his newly devirginized hole.

Lucas starts whimpering as he puts his hands on your chest to steady himself, his young butt feeling awesome around your hard cock, sadly for you, all good things must come to an end as you feel your balls start to rumble, signalling your imminent eruption.

Pulling Lucas down for another make out session, you increase your pace until you can hold on no more, grunting into Lucas's mouth, you push your cock as deep as it'll go into Lucas's bowels before you feel your cock erupt, flooding Lucas's bowels with your hot spunk.