Keep It In The Blood by Samantha Snow

When handsome vampire Zach Knight realized his injured father was close to death he prepared for the worst.
However, as his father passed away, Zach received a visit from an unexpected guest.
It was his father’s wife Vivian.
And she had a stunning proposition.
With his father dead, Vivian wanted Zach to take her as his and finish something that his father had already started. She wanted him to get her pregnant.
Could Zach really impregnate his own step-mother? When he discovered the reason for her request he realized he might not have a choice in the matter….