My wife's ass was covered in cum after I left

A guy's wife was at home when her friend came over. They were just chilling when the husband walked in. He had sex with the friend and then left. When the husband was gone, the friend decided to tease the wife by showing her the evidence of their sexual encounter - her ass covered in cum. The wife found it hilarious and they both had a good laugh. The friend even dared the wife to show her husband when he returns. The wife playfully agreed but with a mischievous smile. The friend then proceeded to rip the wife's clothes, revealing her cute body, and started shaking her ass. The wife found this very hot and got turned on. The friend then proposed that they have a threesome with the husband when he comes back. The wife seemed interested in the idea and they both eagerly awaited the husband's return.