Yes

"Oh, fuck yes," she hardly managed to breathe out before she threw herself on him like a savage animal, mouth and hands darting around his huge member in a frenzy. Had Elliott been any less of a man, he might have come right then and there for all the pleasurable sensations that assaulted him, but as he was, he stood firm and bared his sister's careful coaxing of his manhood.

As Anna slowly worked off her initial fervour, she slipped up and down the slowly hardening shaft. Pre-cum drizzled across the length, coating it in a clear, slimy shell that she eagerly lapped up. Though she did wipe it of her chin when some of it spilled out of her mouth, of course. She wasn't brought up with no manners.

Elliott took this pause as a chance to take control of the situation, clamping one massive paw down on her shoulder and firmly steering her to the bed. With a push, he knocked his sister down, clawing at her clothes and ripping them off her in an impressive show of strength. Anna gasped as the cool night air hit her bare skin. Elliott bared his teeth back at her. Now it was his turn to be the animal, and by the fluttering heartbeat of his prey beneath him, she was all for it.

With a growl, he leaned down to kiss her neck, suckling and nipping at the skin. Anna gave a moan of lust as his hot breath brushed her earlobe, another as his shaft lined up with her dripping pussy.

"Are you ready for me?" he growled, not caring what the answer was. Without even letting her reply, he thrust his 16 inch pole into her, only getting a third in before she cried out in pain. He took no notice of this, shoving more and more of is inhuman length inside.

Unbeknownst to him, Anna was losing control over her powers as lustful pleasure invaded her mind, changing reality as her primal emotions took over.