No, you sick bastard. You aren't going to incorporate this into your pictorial sex fantasies. Who do you think we are? We're not that nasty. You're going to use this to let her know you have take a bathroom break without breaking the flow of your sexual dialogue.
Pro Tip: If you're sexting with two girls at once, and one erotic emoji conversation is going better than another, just send her one of these and get back to her in fifteen, twenty minutes... or however long it takes.