Straight friend gets convinced to have a threesome fucking non-stop

This straight friend has been told by his colleagues for a long time that he should stop fucking and try the cocks, because he's sure to have a better time. But the guy has been holding back so far because he likes tits. In the end, he thinks that if he tries it once, nothing happens, so he surprises his two colleagues by grabbing their cocks from behind. Then the three of them start fucking and show the straight guy how much he will enjoy fucking the asses of guys like them who will always be ready for a fuck.