I'd be inclined to try it...maybe once. But no sword crossing, we're always on the opposite end of the girl, and no...high fiving or measurable acknowledgement of each other's presence. Be nice if I'm a tad bit bigger than him too, for the sake of my pathetically shallow ego. Way bigger would be even better.
Two 'swords' in one hole is definitely 100% to the 9th power...GAY. Pussies are designed for only one phallus at a time. Under no circumstances should that space be shared with two objects. Oh, btw, half the friction is the other guys' dick. There's no math involved that disputes this.
Ladies, you want to give the impression that your sweet little kitty is tight and tiny. Doing the two dick two step just screams otherwise...or any overtly large object.