[Tex/LaTex] Indent textblock but not first line

indentation

the regular behaviour is that a new textblock gets indent on the first line. Which is great.

But I want for certain textblock (not default for the whole document) the exact opposite behaviour. Meaning the first line should not get indent, but all the lines below.

Like shown here:

Lorem ipsum dolor sit amet, consectetur adipisicing elit, 
    sed do eiusmod tempor incididunt ut labore et dolore
    magna aliqua. Ut enim ad minim veniam, quis nostrud 
    exercitation ullamco laboris nisi ut aliquip ex ea 
    commodo consequat.

is it somehow possible? I'm using \documentclass{scrbook} if it matter.

Update: please note that my first line contains a \paragraph headline.

E.g.:

\documentclass{scrbook}
\usepackage{lipsum}
\begin{document}
    \lipsum[1]

    \paragraph{my paragraph} \lipsum[2]

    \lipsum[3]
\end{document}

Best Answer

Paragraph shapes can be changed using the \parshape primitive:

enter image description here

\documentclass{scrbook}

\usepackage[nopar]{lipsum}

\begin{document}

\lipsum[1]

\paragraph{Some paragraph heading}
\parshape % Change the shape of the following paragraph
  2 % Identify the shape by specying 2 lines
  0pt \linewidth % First line has a left indent of 0pt and a width of \linewidth
  \parindent \dimexpr\linewidth-\parindent % Second (and subsequent lines) have an indent of \parindent
                                           % and a width of \linewidth-\parindent
\lipsum[2]  % Set paragraph with new paragraph shape

\lipsum[3]

\end{document}

We change the \parshape after initiating the \paragraph heading.

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