Roza's S-Rank Breakthrough*
As the surge of Eren's essence flooded Roza's body, she was overcome by a mixture of sensations she had never experienced before.
Her mana circuits tingled with newfound energy, pulsating with an intensity that made her gasp in surprise.
Eren watched closely as Roza reacted to the influx of his essence, his gaze filled with a mixture of satisfaction and curiosity.
The Lust-mana-driven technique was really potent, especially when amplified by the Yantra he had used. He had anticipated that the absorption process might be overwhelming for Roza, but he had also trusted her to handle it with grace.
As Eren kissed Roza's bare shoulders, he worked on his strokes, tapping her ass with both hands before squeezing and parting them. At the same time, he rammed his dick deep inside her wet cunt and deposited some more of his load in.