Комикс Fantastic Four (vol.3) #6

The Invisible Woman is at the site of Oracle Inc. where she is taking martial arts training from Iron Fist. She is able to hold her own against the fighting master using the skills she has been taught and an invisible bo-staff. As the battle becomes heated Iron Fist loses his cool and instinctually uses his trademark Iron Fist power on Sue, shaking the whole building in the process. As the other members of the Heroes for Hire come to see what all the commotion was, Iron Fist is horrified by what he has done. However they find that Sue is still alive, having blocked the blow with a force field, and is taking it all in good fun. With the training session over, Sue decides to cool down by swiming in Oracle Inc.'s swimming pool. There she is suddenly pulled under the water. Soon realizing that it is none other than the Sub-Mariner. Sue uses her powers to raise them both out of the water.