What are your thoughts on a Male Bridesmaid

Yes you can choose a male bridesmaid and a groom may choose a female "groosman" as well.  I would suggest you both discuss the situation and you both are ok with the idea.  In regards to the attire I would suggest that this opposite-gender attendant wear the approprate attire.  (dresses for females and suites or tuxes for males) They can stand on either side of the altar.