[FFM] Inviting me over to make her best friend *finally* cum

It was during the heart of the pandemic that I [M-30] was lying on my couch, feeling a bit groggy from the vaccine I had gotten a few days earlier, that my girlfriend [F-28] texted me. “You should come over.”

She had left earlier in the day to visit her best friend & sorority sister โ€” let’s call her Mina [F-26] โ€” on the other side of town for one of their monthly sushi dates. They’ve been thick as thieves for years and never keep secrets from one another. This obviously extends to their sex lives as well. On one occasion, when my GF and I first started making NSFW content (just for fun), I distinctly remember her yelping with a delighted squeal at the site of one picture where my cock was at full attention โ€” with a coy smile, she asked me, “Can I send this to Mina?” I felt the blood rush back to my member despite having just unloaded all the jizz I could muster onto her plump lips. How could I say no?