Iris couldn't help but giggle a little at Barry inviting her to watch him make out with Leonard. They might have just discussed the idea of an open relationship but the details of that weren't actually written out. Watching her boyfriend kiss his boyfriend--or whatever Snart was going to be to him--never even crossed her mind. The idea didn't necessarily scare her off but she wasn't sure exactly how she felt about it.
Shaking her head at her own indecisiveness, she reached down to take off her other shoe and tossed them somewhere near the front door. Her smile grew thinking about how committing crime was just fine for Leonard but cheating was crossing the line. "I am very happy to hear that."
The plan had been come home, settle in and curl up with Barry in his wheelchair while they watched TV--preferably none that contain any of the people in the city. This had completely thrown Iris for a loop but she knew how to roll with punched.
She gave Leonard a sly look. "Yes, you may kiss my boyfriend," she said as she approached the two men in the kitchen, "but not before I have."
She moved to gently push him aside as she bent over to kiss Barry once, twice and once more for a beat longer just because she could.