Take Advantage of the Changes in her Behavior

In the morning when he meets his mother downstairs and she’s only wearing panties and a t-shirt, Harry hugs her and uses it as an opportunity to continually grope her panty clad ass for over a minute.

After stopping the hug, Harry kisses his mother on the cheek before telling her good morning.

While she goes to make breakfast Harry uses the opportunity to watch some tv.

When his mom calls that breakfast is done, he walks into the kitchen to see his mom putting food down on the table.

Waking up behind her, Harry gives her a hug while groping her tits and thanks her for making breakfast while using the chance to rub his erect cock against her ass.

Once they finish breakfast, Lily said she wanted to research something in the library, but that she’d be out around lunchtime so she could make lunch.

While she was reading in the library, Harry was researching as well on his room.

Looking through the couple of medical books he had brought to his room, Harry finally found a spell similar to what he was looking for.

The spell he found, Sensitivo Corpus Mutationes, was used by healers to reduce the sensitivity of an injury so a patient would be in less pain.

However the spell also allowed the caster to change the sensitivity in the opposite direction, making the person it was cast on more sensitive.

Harry felt like it was the closest spell he was going to find towards what he was looking for.

It wasn’t completely what he wanted so he planned to use Arithmancy to modify it, as it’s much easier than developing a spell from scratch.

With only two hours of doing the numbers, Harry felt he had a incantation that work, Sensitivo Corporis Sensu Mutationes.

Casting the spell on himself, “Sensitivo Corporis Sensu Mutationes,” he muttered, Harry pinched his arm and instead of pain he felt a pleasant sensation.

“Harry, it’s time for lunch!” Lily called up stairs to him.

Smiling at his success Harry couldn’t wait until he got to try out the spell.