Why not? Go to her camp

"O-okay, I'll go with you." - Being alone in forest at night wasn't best option and Lily doesn't seems suspicious, so Eric decided to spend this night at her camp.

"Good choice boy! My camp is that way, let's go!"

"Um, you're not coming?" - as Eric head the way Lily showed him he noticed that she stayed behind.

"Yeah, I just need to fix my tail... I-I mean to check a tail or how they say... I mean to see if we're followed... Just go forward."

Couple minutes later Eric came out on a clearing where he saw a small camp, with couple stumps, single tent and campfire. Aside from himself there were nobody else, but moments later Lily come from bushes nearby.

"You didn't lost, congrats boy!"

"You're alone here?"

"Ah, yeah... Don't worry though it's safe place. Anyway do you happen to have something to eat?"

"Yeah, I have couple sandwiches my mom made this morning." - Eric opened his backpack and gave Lily sandwich.

"Hmm, interesting..." - said Lily as she studied offered food. - "What these herbs for?"

"Oh, my mom is herbalist, she said they'll help restore your energy or something like that. You don't whant it?"

"Yeah, take it. I'll eat my own food..."

The rest of evening was uneventful and soon Eric found himself lying in tent with Lily. Though he was aware that it won't lead to anything fun, he still was pretty excited to sleep with such pretty girl. He was facing away and suddenly he felt as Lily hugged him pressing her large breasts into his back. 'Wow, I didn't knew they're so big, her shirt did good job consealing them...' he thought.

"H-hey Lily? Are you sleeping?"

"Oh, I thought you're asleep already, boy... Well, it'll be more interesting then"

As he heard her voice Eric feel that something was not right, and his suspicions were confirmed when Lily shifted and something long and hard slipped between his thighs while some rope constricted his legs. He turned around to face her and his eyes opened wide when he saw her. Behind him was Lily, but she looked different - she was bigger, but what he saw first was her bright glowing yellow eyes and a pair of long horns growing from her forehead. 'A demon!? This close to village?!' he stare at her in panic while demoness just grinned and bucked her hips, attracting his attention to her throbbing length.

"You know, I can do it slow or fast and rough... Say, how do you want it?"