Help the water nymphs

"Um, so what exactly do you girls want" you ask, cautiously optimistic. The two girls are leaning on their elbows, laying down in the shallow water. "Oh, don't play dumb! Tell us which is more beautiful!" the curvy one commands. You look back and forth nervously. "I'm sorry girls, but I think you're both extremely beautiful. "Bah!" exclaims the thinner one, "Everyone has a favorite. Just tell us which is yours." As she finishes her sentences, she furtively points to herself with the hand furthest from her friend. Still nervous, you try to stall. "Well, it's just that it's a comparison between two different types of girls. You each have your own style of beauty that you excel in." They don't seem to be buying it. "I know!" exclaims the curvy one, "There's one thing that never lies!" With surprising agility, she darts from the water at you. You step backwards, but she's too quick. The girl grabs onto your pants, pulling them down while you fall back on your ass.

"Aha, I knew it!" the curvy one exclaims, pulling your pants off your legs with some difficulty. "I did that, he favors me!" she says, pointing at your bare erection. The tall one rushes out of the water impetuously. "You liar! I did that, you're just taking the credit! I'm his favorite!" The girls start to grapple ineffectually on the ground in front of you, giving you time to collect yourself. Standing up, naked from the waste down, you address them. "Girls, girls, please stop fighting. I'll help you with your, problem, I guess, but you need to be civil!" Ruefully, the girls break apart and stand in front of you. "Just watch me, I'll prove that I'm best" the curvy one says, as much to you as the other girl. Eyes focused on your cock, she steps back to the pond and splashes water on herself. The sun is shining brightly in her direction, causing light to reflect from the water as it drips down her womanly form. She spins slowly in a circle, fondling her ample breasts and ass as she displays them to you. Your cock can't help but twitch and expand at the show. "Aha, you see what I did!" she says, looking at her friend, "He obviously wants me more!" The tall one does not respond, but instead begins her own display. Turning so her side faces you, she bends over, showing off her long, taught legs. Moving back up gracefully, she chooses the more subtle route, drooping her long, wet hair over her breasts and strutting towards you while eyeing you lustfully, hips rocking as she steps. You boner throbs and grows yet again, spurring a shout of victory. "I did it too, even better, I'm sure! I really am more beautiful.

The situation seems to be a tie, which means that their pestering is bound to continue unless you settle this another way.