No, you cum inside the condom

Even with the muted feeling, you are able to get a rhythm going to where you both enjoyed it. Sure, it didn't feel that great, but you did get laid, so you attempted to enjoy it! You pumped in and out, faster and faster, and she tightened around you.

You leaned forward as you increased your speed, kissing her neck as you drove her into the mattress, trying to feel something as the condom constricted your length. At long last, you were able to feel an orgasm start building in the tip of your cock.

As you kept going, she whispered, "cum for me baby" and you couldn't hold back any longer, inflating the condom with a week's worth of cum. As you groaned, she squeezed, milking every drop into the rubber. You slowly pulled back, making sure to carefully remove and tie off the condom. She looked at how full it was in awe, exclaiming how she definitely would have gotten pregnant from such a large load. You kiss her one last time before leaving her to clean up, heading back to the party to find some weed.