Try and apologize

"Yeah, sorry! I just couldn't help myself..." You say with a flustered smile, though you don't even try to look away while checking Jessica out in her new outfit.
"I bet you couldn't!" She sneers back at you, but doesn't seem like she's entirely put off by your ogling. In fact, you're pretty sure you see the hint of a smile at the corners of her lips as she's a little slow at grabbing her suit top and putting it back on again to provide at least some minor amount of cover for her chest department.

"Look..." She starts after a few moments of silence, while you're both mostly just looking around for any other eventual things to salvage. "If we're gonna put up with each other on this island for a while, if just for a few hours until someone comes to rescue us, then I'd really appreciate if you could at least try not to get me undressed at every possible turn. Okay?"

"I could try..." You agree, just a little bit ashamed of yourself for having such lustful feelings for someone you just met, and especially while you should both focus on survival rather than anything else. "I just can't help it though..." You shrugg your shoulders miserably, and recieve a glance from Jessica that's both annoyed and curious at once. "You're just too beautiful...! And I think the crash and everything is making me all... kinda cuddly, you know...?"

"Well, yeah..." She nods her head while rummaging about in one of those suitcases, and sounds like she can see some sense to your words at least. Then she does the unexpected and walks right up to you, pushing those impressive tits up to your chest while she embraces you gently. "Feeling better now...?" She asks you softly.
"Mmm-hmm...!" You smile and hug her back, though a little longer than she's probably comfortable with, and hope that she can feel your cock brushing up against her thigh through your underwear - even though you suppose it will freak her out even more...