I find cougerism classless unless by a divorcée/single and an of age local hot fellow in which the female remains in control.
A la Stifler's mom Vs Mrs. Robinson. Mrs Robinson should have been ostracized by everyone after what she did to her husband. Stifler's mom is totally in control and doing nothing wrong, and therefor AWESOME.
Succumbing to treat a younger fellow purely for his enjoyment on his birthday would leave me Mrs. Robinson status.
Although ideal for a male as an ultimate victory, tis embarrassing for the female, and I refuse to allow myself into such a situation.
You shall have to get drunk and find someone/something else.