That's a shit-ton of semen... That said, it's well animated. Although, there are a few moments when she's closing her eyes and opening her mouth that she looks eerie... And, her mouth just seems so tiny compared to her head, made distinct especially when you get the glimpse of the inside of her mouth near the end of the gif clip, her upper jaw set of teeth are minuscule at best. Well, that does make sense as to how she can't have the dick in her mouth, but only lick it on the outside. Typical Uncanny Valley stuff, you all know the drill.