Black widow was passing around her room she had just called cap to come there. Cap walked in and asked her what was wrong. She said nothing but she walked over to him and kissed him passionately. Cap was a little taken aback but then deepened the kiss. They stayed like this for a while until cap started to take widow's jumpsuit and widow did the same to cap's uniform until they wre both standing there until they wre both in their underwear. Cap unclasped widows bra and licked the right nipple then did the same thing to the left. She moaned and that was all the permission he needed. Soon he had his member at her entrance. He wentin slow but got faster and faster until they both organismed. After that they fell asleep in each others arms
Disclamer I do not own the avengers