Staging is super, but the script could have been finished in a more interesting way, for example, either the awakened girlfriend would have thrown the friends out into the street, or even joined them and looking at her friend obliquely would have screwed her boyfriend much cooler than a mulatto!
As for me the lady is not very pleased with this kind of sex! The expression on her face never showed that she liked it. I think she would have enjoyed it more if she had served the men one at a time. And the two of them just bore her. Did the lady enjoy herself? I don't think she did.
At first the men aroused the Asian girl, not roughly. Then she managed her hands with their cocks, reciprocating.