Most Helpful Girl
"Hey I'm sorry I came off that way. You're a really attractive girl but I kind of like you friend and I don't want to make this awkward for anyone. "
Most Helpful Guy
ohhh complex situation
I'd decline and explain why but I'm not sure I'd risk telling her you were interested in her friend, cos she would spill the marbles and you'll have to sweep them up in front of her, in your undies, whilst spontaneously farting and forced fed mexican beans.