Some hands on research

There was no sign of objection from his mother. None verbal anyway, as her eyes slightly widened when Billy got up from his bed, his palms sweaty as he eagerly raised his hands and groaned as he pressed them into the bulk of each tit. With childlike fascination his fingers wiggled about with perverse intent, cupping and manipulating his mothers ample flesh as he assessed her breasts firmness on his own mental 1-10 scale. He then lifted each heavy orb, awestruck by how heavy they were and the strain they must have bore on his mothers back; Unfortunate there was no reliable way he could record the weight.

Billy was so engrossed by all his recent findings that he hadn't been focusing for some time as he felt a slight jerk in his mother's posture and a small utterance of protest escape her lips. Quickly he took action and stared at her once again, quickly entering her door as he uttered his next command.

"Stop moving."

All his mothers restlessness ceased. Unfazed, Billy moved on, his eyes squared on his mother's dark , prominent nipples. He started to tease them with his thumbs and pointer fingers, each moment going by as he soon felt the desired effect. pleased, he let go and stared at her fully engorged state before reaching to his desk to grab a nearby measuring tape.

"Nipple length, twenty millimeters when erect" he announced, feeling proud of his mother's impressive dimensions as her jellybean sized treats seemed to draw him in even closer. The next test was unconventional, yet completely necessary as his mouth sunk down onto her areole, relishing the feeling of her teat against his tongue as he suckled gently, savouring the mild flavour of her skin.