User blog comment:FairyRaven/Fairy Tail Chapter 312: Threesomes, Review and Commentary/@comment-96.253.204.17-20121221165746/@comment-5268982-20121221173031

Yes but we're not sure if Minerva has used the full potential of her magic either. Her magic is not explained yet, so she probably has not. Remember, she is tougher than Sting and Rogue, she gotta have more than that!

As for the second threesome...I guess it'll happen off-screen.