As an older brother, Federico probably taught Ezio many things; one of the most important being how to please a woman. Imagine agreeing to take part in a practical demonstration for the younger Auditore. In between kisses, licks, and nips Federico would explain exactly what he is doing to elicit those gasps and whines from you while Ezio watches from the side. After getting you off with his mouth, Federico moves over and motions for Ezio to give it a go. He fumbles a bit and it’s not as finessed as what you just experienced but you can sense his determination to get those sounds out of you that Federico had made to seem so easy.
Federico senses it as well and reminds him that we have the whole night to practice. Hearing that you’ll be receiving the attention of both brothers for hours brings a drawn out moan from you as you reach climax. From there, each round gets more and more intense as Ezio’s skills improve allowing Federico to move away from teaching and focus on you completely. By the time the sun begins to rise the three of you are an exhausted, sweaty mess but you wouldn’t want to be anywhere else in the world than between the two Auditore brothers as you drift off to sleep.