Yorkshire Ripper Peter Sutcliffe is hoping to have an IVF baby with an American pen pal 46 years his junior, according to reports.
The 73-year-old reportedly wants to have a child with Krystal Smith, 27, who claims to love the twisted murderer.
The pair have only been corresponding for a year and have yet to meet, although Miss Smith has reportedly looked into whether conjugal visits are allowed in the UK.
Sutcliffe, a prisoner in Frankland jail, County Durham, has asked his ex-wife Sonia for permission to get remarried.
A source compared the serial killer to a 'lovesick teen' and said Miss Smith sent him perfumed letters, The Sun reports.
According to the newspaper, Sutcliffe told a friend: "She’s a lovely looking girl. She has been mentioning for a while that she’d like to be the next Mrs Sutcliffe.
"So I said ‘Yes’. Her parents have told her they support the wedding.”
Sutcliffe was jailed for life in 1981 for murdering 13 women and trying to kill seven more between 1975 and 1980.
He shared a home with Sonia at the time of the killings, although the couple divorced in 1994.
Neil Jackson, the son of Emily Jackson, Sutcliffe's second victim, said the thought of the killer fathering a child made him feel sick.
Ten prisoners have been allowed to have fertility treatment.
Inmates have used article eight of the EU's Human Rights Act - the right to a family life - to secure IVF.
Miss Smith reportedly declined to comment.
