Ruby sat there, watching the scene with a slight smile on her lips. Feeling the head of the cock spreading her, stretching her in a way that had never happened caused the young halfling to gasp before a soft groan came from her at the feeling. Looking at Serath a small grin came to her lips, "Really good," she answered. Ruby had watched but she now leaned down. She began to use her hands on his balls once more. She used her mouth on the part of his cock that wasn't inside of her friend. Every now and then she would flick her tongue over Heather's clit, causing a deep groan to come from the halfling. She was growing hotter and wetter with her friends actions, each time her hips would wriggle and she'd groan again at the feeling of him inside of her.