For 1 and 3, pls give us a head warning which gals u did it .......but then why the fcuk u riskin the gals (if u are contagious) or your own (vice versa).
But I heard these these mischievous acts a lot from WGs and they do freak out and very concious when performin the deed....that;s why when u had them back to your place and offer them drinks, they tend to refuse until they are comfortable with you.
For 2, no doubt whatsoever......I do this all the time.......with a slap at the end...........