The moment the puff of smoke clears and he sees who now lies spread across the floor where the leopard had been not a moment ago, he takes his hand away with a shocked hiss like her skin just turned acidic. Her one word drowns under Bruce's own when he finally speaks up, hands drawn close to his own chest and as far away from her as possible without actually crawling away from her.

"Jesus fuck!" he's not big on swears, not really, but the whole situation is so surreal and unbelievable that the word slips past his lips before he even thinks it over. "Natasha?! I'm--"

Then he sits there, for a while unable to look away from her in sheer shock, then something clicks in his brain and finally he realizes she's very much naked across the floor, right in front of him. His eyes fall on the ground to his side, hands held up between them as if to block his own vision further. "God, I... sorry, just." Another awkward moment of silence, then he hurriedly shrugs off his jacket and holds it open towards her. "Here. Just. Take it."