virgins where being taken specifically young female virgins.

Dean figured it out when Sam mentioned the first two victims where very religious young females and Dean read through the third girls diary and figured out she was a virgin too.

dean backed up the theory the third one was a virgin by reading her diary. “i’ve decided im going to give stan my most precious gift” Dean read out in a storyteller voice, while reading her diary entry about her planning on giving up her virginity to her boyfriend stan.

sam made a disgusted face, “wow. that sounded creepy coming out of your mouth”

dean glanced at him then back down to the diary, “i think i delivered it.”

sam then rolled his eyes and looked from Dean to you and back to Dean as he spoke, “okay well who would want virgins”

Dean smirked, “you got me i prefer ladies with experience”

you rolled your eyes before speaking up, “well good thing you both have one thing it wants”

Sam and Dean looked at you confused before you spoke again, “a female virgin?”

Dean finally realized, “you’re a virgin?” Dean looked at you like he saw a ghost as he asked looking you up and down.

“come on you? seriously? you can’t expect me to believe that!”