BFF Mouthful

This can only happen when two best friends are giving blowjobs simultaneously. While performing they are told to look up and they are surprised to see each other.....

Dexter: Carol is going to be giving me skull at 7:30 tonight. BFF mouthful?
Josh: Yeah Sheryl will be home by 5. I can make sure she's blowing me at 7:30.
Dexter: Ok perfect. I'll send you the facetime invite at 7:32. Just accept the call immediately and point the phone at her. I'll make sure to do the same.

Josh: This is going to be especially funny because Carol and Sheryl are best friends.